We will be using STM32CubeIDE as the development environment. STMicroelectronics NUCLEO-F446RE STM32F446RET6 MCUĪffiliate Disclosure: When you click on links in this section and make a purchase, this may result in this site earning a commission at no extra cost to you.STM32 Nucleo-64 Development Board with STM32F401RE MCU.STM32 Nucleo-64 Development Board with STM32F303RE MCU.If you use one of the following development kits, you don’t need the CJMCU-2232HL UART to USB module as USB interface is integrated to these kits already You will need to install VCP driver (Virtual COM Port driver) on your host machine for the computer to talk with the FT2232HL chip.įor the STM32 to communicate with the CJMCU-2232HL module, you need to connect TX pin of USART3 to RX pin of channel A of CJMCU-2232HL, and connect RX pin of USART3 to TX pin of channel A of CJMCU-2232HL as shown below STM32 pin The table below listed the relevant pins to our project FT2232HL pin It has USB interface and several exposed IO pins. In our project, we will use USART3 module and pin PB10 and PB11.ĬJMCU-2232HL is a cheap dual channels UART to USB module which uses FT2232HL chip. If you take a look at the Device Configuration Tool in STM32CubeIDE, you will see that the RX and TX pins of these modules are hard-wired to specific IO pins as listed in the below table Pin The STM32F103VBT6 chip has 3 USART modules (USART1, USART2 and USART3). If you are using a different development kit, you will need to check its datasheet and make necessary adjustment to each step below. In this project, we will use DESTM32-S1 development kit which has STM32F103VBT6 microcontroller with ARM Cortex M3 core, 80 IO pins, 128 kB flash and 20 kB of SRAM. We will use the following components in our project Component By going through this project, you will learn how to implement serial communication with STM32 UART. In fact, the STM32 is not communicating directly with the host computer, but via an UART to USB bridge as shown in the diagram below Project connection diagramĪn UART terminal software is needed to display the message sent from the STM32. Our objective in this project is to send data via UART from an STM32 chip to a host computer (which could be a Windows, Linux or Mac machine) and display the message on the host’s screen.
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